Make (at least) one copy of it, just in case anything happens to the original?
Take it to a police officer, and hope you can trust them?
Keep it in your house and wait for AD to come and steal it?
Take a photograph of the phone as proof that you have it, but leave it behind in your kidnap lair?
Keep it on your person but don’t let him know?
Fucking show him the phone so that he can take it off you by force?
Go to the police and explain it was an accident?
Bury him and make it look like he skipped town?
When he knowingly stalked you and your friends from the age of 15, and got with you underage, because he was ‘writing a book’?
When he put your wedding on hold to go hug & kiss his ex-girlfriend on national television?
Nothing. You stay with him because he was your first love.
Never make a tape in the first place, because that would be self-incrimination and totally stupid?
Leave it in a room with your kidnap victim?
Just let him go? You already kind of said your goodbyes, and he made it clear he loves Yvonne.
Go to his house and stir up some unresolved feelings? Why should he be happy?
Ask to kiss him? Because fuck Yvonne and her feelings.
In your hand, to make sure it doesn’t leave your sight & to use as a flashlight?
In your back pocket where the blind girl will probably take it? (because this is PLL)
Put it down on the godforsaken table. WHY?! WHY WOULD YOU PUT YOUR PHONE DOWN ANYWHERE IN THIS CREEPHOLE EMILY?!
Lock him in a cupboard or something until you can alert the police?
Knock him unconscious and claim self-defence?
Stay silent and don’t move? She certainly can’t SEE you to aim at.
Whisper to one another and hope she's as deaf as she is blind?
Make really heavy thumping footsteps to alert her of your presence?